6533b82cfe1ef96bd128ea05
RESEARCH PRODUCT
The combined effect of CO2, ozone, and drought on the radical scavenging system of young oak trees (Quercus petraea) — A phytothron study
Aloysius WildP. StrobelU. SchmiedenC. Kurzsubject
PollutantEnvironmental EngineeringOzonebiologyHealth Toxicology and MutagenesisPublic Health Environmental and Occupational Healthchemistry.chemical_elementGeneral MedicineGeneral Chemistrybiology.organism_classificationPollutionSulfurFagaceaeHorticulturechemistry.chemical_compoundchemistryPhytotronCarbon dioxideBotanyEnvironmental ChemistryQuercus petraeaScavengingdescription
In order to study the combined effects of CO 2 , ozone, and drought, we simulated in a controlled environment the climatic conditions of a German oak stand with high ozone (daytime: 80 ppb, control: 20 ppb) during one vegetative period under a regime of low and high CO 2 concentration (370 vs 720 ppm) and drought (4 weeks < -800 hPa). To investigate the effects of CO 2 , ozone and drought on the radical scavenging system, we monitored the level of glutathione, ascorbate, and α-tocopherol. However, it is important that, under the regime of elevated CO 2 , the antioxidative behaviour of glutathione and ascorbate appears to be masked by their function as storage molecules for sulfur or carbon.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-02-01 | Chemosphere |